How Fast Does Thuja Green Giant Arborvitae Grow

Thuja Green Giant arborvitae grows fast, with a typical rate of 3 to 5 feet per year once established.
 
If you are wondering how fast does thuja green giant arborvitae grow, the answer is impressive for a privacy screen or hedge plant.
 
This evergreen can quickly reach 50 to 60 feet tall and 12 to 18 feet wide, making it a popular choice for rapid landscaping.
 
The thuja green giant arborvitae growth rate is among the fastest for any evergreen shrub or tree in its class.
 
In this post, we will break down the growth rate of thuja green giant arborvitae and what affects it.
 
Let’s explore how fast your green giant arborvitae can grow and how to help it thrive.
 

How Fast Does Thuja Green Giant Arborvitae Grow?

The thuja green giant arborvitae growth speed depends on factors like soil, water, and sunlight.
 
Here is a closer look at how fast does thuja green giant arborvitae grow in different conditions.
 

1. Typical Annual Growth Rate

Once established, thuja green giant arborvitae grows 3 to 5 feet in height each year.
 
This thuja green giant arborvitae growth rate continues for the first 15 to 20 years if conditions are ideal.
 
Some gardeners report growth spurts of up to 5 feet in a single growing season.
 
That is why the thuja green giant arborvitae grows so fast compared to other evergreens.
 

2. Growth in the First Year

In the first year after planting, thuja green giant arborvitae grows more slowly as it establishes roots.
 
You might see only 1 to 2 feet of top growth during the first season.
 
But once the root system is strong, the thuja green giant arborvitae growth accelerates quickly.
 
So do not worry if your green giant arborvitae grows slowly at first.
 

3. Full Size Timeline

The thuja green giant arborvitae growth timeline to full height is around 15 to 20 years.
 
At that point, it can reach 50 to 60 feet tall with a spread of 12 to 18 feet.
 
If you wonder how fast does thuja green giant arborvitae grow to maturity, expect a fast climb each year.
 
This rapid growth makes it a top choice for creating privacy screens in a short time.
 

Factors That Influence Thuja Green Giant Arborvitae Growth

The thuja green giant arborvitae growth rate is not fixed and varies with care and environment.
 
Knowing these factors helps you maximize how fast your green giant arborvitae grows.
 

1. Sunlight Exposure

Thuja Green Giant arborvitae grows fastest in full sun, meaning at least 6 hours of direct sunlight daily.
 
In partial shade, the thuja green giant arborvitae growth slows to 2 to 3 feet per year.
 
Less light reduces photosynthesis, which directly affects the growth rate of thuja green giant arborvitae.
 
So plant in a sunny spot for the best growth speed.
 

2. Soil Quality and Drainage

Well-drained, loamy soil with a pH of 6.0 to 7.5 supports how fast does thuja green giant arborvitae grow.
 
Soggy or compacted soil can stunt the thuja green giant arborvitae growth significantly.
 
Adding organic matter at planting time boosts the growth rate of thuja green giant arborvitae.
 
Good drainage ensures roots can spread and uptake nutrients easily.
 

3. Watering and Moisture

Consistent watering during the first two years is key for thuja green giant arborvitae growth.
 
Once established, the thuja green giant arborvitae grows well with moderate moisture but tolerates some drought.
 
Overwatering or underwatering both reduce how fast your green giant arborvitae grows.
 
Aim for about 1 inch of water per week, either from rain or irrigation.
 

4. Climate and Hardiness Zone

Thuja Green Giant arborvitae grows best in USDA zones 5 through 8.
 
In colder zones, winter damage may slow the growth rate of thuja green giant arborvitae.
 
In hot and humid climates, the thuja green giant arborvitae growth stays strong as long as soil is not wet.
 
Choose a location within its hardiness zone for optimal growth.
 

5. Spacing and Competition

Plant thuja green giant arborvitae 5 to 6 feet apart for a hedge or 10 feet apart for specimen trees.
 
Tight spacing reduces air flow and can slow how fast does thuja green giant arborvitae grow.
 
Root competition from nearby plants also limits the growth rate of thuja green giant arborvitae.
 
Give each tree room to spread for maximum annual growth.
 

Tips to Maximize Thuja Green Giant Arborvitae Growth Rate

To get the fastest possible thuja green giant arborvitae growth, follow these practical tips.
 
Your goal is to help the green giant arborvitae grow as quickly and healthily as possible.
 

1. Fertilize in Spring

Apply a balanced fertilizer such as 10-10-10 in early spring to support how fast does thuja green giant arborvitae grow.
 
Avoid heavy nitrogen fertilizers late in the season because they encourage soft growth that winter can kill.
 
A single feeding per year is enough to sustain the thuja green giant arborvitae growth rate.
 

2. Mulch Around the Base

Add 2 to 3 inches of organic mulch like wood chips around the root zone.
 
Mulch conserves moisture, regulates soil temperature, and suppresses weeds that compete for nutrients.
 
This simple step boosts the growth rate of thuja green giant arborvitae by keeping roots happy.
 
Keep the mulch a few inches away from the trunk to avoid rot.
 

3. Prune Only When Necessary

Thuja green giant arborvitae grows naturally in a pyramid shape and rarely needs pruning.
 
If you prune, do it in early spring before new growth starts.
 
Cutting back branches can temporarily reduce how fast your green giant arborvitae grows.
 
Let it grow naturally for the best annual height increase.
 

4. Provide Wind Protection

Strong winds can dry out foliage and stress the tree, slowing thuja green giant arborvitae growth.
 
Plant in a sheltered spot or use a windbreak fence if your site is exposed.
 
Protecting from winter winds also reduces browning and keeps the growth rate of thuja green giant arborvitae steady.
 

So, How Fast Does Thuja Green Giant Arborvitae Grow?

Thuja Green Giant arborvitae grows fast, typically 3 to 5 feet per year after establishment.
 
If you are asking how fast does thuja green giant arborvitae grow, the answer is one of the fastest among evergreens.
 
With proper sunlight, soil, water, and spacing, the thuja green giant arborvitae growth rate can reach its full potential.
 
Remember that first-year growth is slower, but the tree soon picks up speed quickly.
 
Use the tips in this post to help your green giant arborvitae grow as fast as possible.
 
Whether for privacy or landscaping, the thuja green giant arborvitae growth rate makes it a rewarding choice.